Resolving dependencies... Configuring cmdargs-0.10.14... Configuring base-compat-0.9.1... Building cmdargs-0.10.14... Building base-compat-0.9.1... Configuring dlist-0.8.0.2... Installed base-compat-0.9.1 Building dlist-0.8.0.2... Installed dlist-0.8.0.2 Configuring ghc-paths-0.1.0.9... Building ghc-paths-0.1.0.9... Installed ghc-paths-0.1.0.9 Configuring haddock-library-1.4.2... Building haddock-library-1.4.2... Configuring integer-logarithms-1.0.1... Installed haddock-library-1.4.2 Configuring mtl-2.2.1... Installed cmdargs-0.10.14 Building integer-logarithms-1.0.1... Building mtl-2.2.1... Configuring network-2.6.3.1... Installed integer-logarithms-1.0.1 Configuring random-1.1... Installed mtl-2.2.1 Building network-2.6.3.1... Building random-1.1... Configuring primitive-0.6.2.0... Installed random-1.1 Building primitive-0.6.2.0... Configuring time-locale-compat-0.1.1.3... Installed network-2.6.3.1 Building time-locale-compat-0.1.1.3... Configuring transformers-compat-0.5.1.4... Installed time-locale-compat-0.1.1.3 Building transformers-compat-0.5.1.4... Configuring text-1.2.2.1... Installed primitive-0.6.2.0 Building text-1.2.2.1... Installed transformers-compat-0.5.1.4 Configuring haddock-api-2.17.3... Building haddock-api-2.17.3... Configuring tagged-0.8.5... Failed to install haddock-api-2.17.3 Build log ( /home/builder/.cabal/logs/haddock-api-2.17.3.log ): cabal: Entering directory '/tmp/cabal-tmp-9559/haddock-api-2.17.3' Configuring haddock-api-2.17.3... Building haddock-api-2.17.3... Preprocessing library haddock-api-2.17.3... [ 1 of 38] Compiling Paths_haddock_api ( dist/build/autogen/Paths_haddock_api.hs, dist/build/Paths_haddock_api.o ) [ 2 of 38] Compiling Haddock.Version ( src/Haddock/Version.hs, dist/build/Haddock/Version.o ) [ 3 of 38] Compiling Haddock.Syb ( src/Haddock/Syb.hs, dist/build/Haddock/Syb.o ) [ 4 of 38] Compiling Haddock.Parser ( src/Haddock/Parser.hs, dist/build/Haddock/Parser.o ) [ 5 of 38] Compiling Haddock.GhcUtils ( src/Haddock/GhcUtils.hs, dist/build/Haddock/GhcUtils.o ) src/Haddock/GhcUtils.hs:20:1: warning: [-Wunused-imports] The import of ‘Data.Function’ is redundant except perhaps to import instances from ‘Data.Function’ To import instances alone, use: import Data.Function() src/Haddock/GhcUtils.hs:27:1: warning: [-Wunused-imports] The import of ‘RdrName’ is redundant except perhaps to import instances from ‘RdrName’ To import instances alone, use: import RdrName() src/Haddock/GhcUtils.hs:28:1: warning: [-Wunused-imports] The import of ‘GhcMonad’ is redundant except perhaps to import instances from ‘GhcMonad’ To import instances alone, use: import GhcMonad() src/Haddock/GhcUtils.hs:30:1: warning: [-Wunused-imports] The import of ‘UniqFM’ is redundant except perhaps to import instances from ‘UniqFM’ To import instances alone, use: import UniqFM() [ 6 of 38] Compiling Haddock.Backends.Xhtml.Types ( src/Haddock/Backends/Xhtml/Types.hs, dist/build/Haddock/Backends/Xhtml/Types.o ) [ 7 of 38] Compiling Haddock.Backends.Hyperlinker.Types ( src/Haddock/Backends/Hyperlinker/Types.hs, dist/build/Haddock/Backends/Hyperlinker/Types.o ) [ 8 of 38] Compiling Haddock.Types ( src/Haddock/Types.hs, dist/build/Haddock/Types.o ) src/Haddock/Types.hs:451:10: error: Duplicate instance declarations: instance NFData Name -- Defined at src/Haddock/Types.hs:451:10 instance NFData Name -- Defined in ‘Name’ src/Haddock/Types.hs:452:10: error: Duplicate instance declarations: instance NFData OccName -- Defined at src/Haddock/Types.hs:452:10 instance NFData OccName -- Defined in ‘OccName’ src/Haddock/Types.hs:453:10: error: Duplicate instance declarations: instance NFData ModuleName -- Defined at src/Haddock/Types.hs:453:10 instance NFData ModuleName -- Defined in ‘Module’ cabal: Leaving directory '/tmp/cabal-tmp-9559/haddock-api-2.17.3' Building tagged-0.8.5... Configuring vector-0.12.0.0... Installed tagged-0.8.5 Building vector-0.12.0.0... Installed text-1.2.2.1 Configuring hashable-1.2.5.0... Building hashable-1.2.5.0... Installed hashable-1.2.5.0 Configuring uuid-types-1.0.3... Building uuid-types-1.0.3... Configuring unordered-containers-0.2.7.2... Installed uuid-types-1.0.3 Building unordered-containers-0.2.7.2... Installed vector-0.12.0.0 Configuring scientific-0.3.4.10... Installed unordered-containers-0.2.7.2 Building scientific-0.3.4.10... Installed scientific-0.3.4.10 Configuring attoparsec-0.13.1.0... Building attoparsec-0.13.1.0... Installed attoparsec-0.13.1.0 Configuring aeson-1.1.0.0... Building aeson-1.1.0.0... Installed aeson-1.1.0.0 Configuring aeson-pretty-0.8.2... Building aeson-pretty-0.8.2... Installed aeson-pretty-0.8.2 cabal: Error: some packages failed to install: haddock-api-2.17.3 failed during the building phase. The exception was: ExitFailure 1 hdocs-0.5.1.0 depends on haddock-api-2.17.3 which failed to install.